日本废弃物处理利用经验对中国的启示

    Practice of Japan's waste treatment and utilization and inspiration for China

    • 摘要: 为推动废弃物资源循环利用,借鉴日本在废弃物处理利用方面的成功经验,围绕中国废弃物处理现状和现存问题,提出符合中国国情和民情的废弃物处理利用政策建议。该研究通过实地走访调研结合相关资料分析,综述了日本废弃物处理利用现状,重点分析了厌氧发酵制沼气、好氧发酵制肥以及食品废弃物饲料化技术进展,总结了日本废弃物处理利用在法律法规体系、运行机制、科技创新和科普教育方面的经验做法。针对中国废弃物处理利用待解决的问题,提出了优化中国废弃物处理利用体系的对策建议,建议加强宣传教育、引导居民思想理念变革,构建完善法律法规体系、打通废弃物处理难点卡点,加大科技投入、推动废弃物处理技术革新,探索废弃物处理付费和产品补贴机制、促进产业可持续发展。该研究通过研究日本废弃物处理利用的经验做法,结合中国实际情况提出了相应的对策建议,以期提高中国废弃物处理利用水平,为加快推进中国废弃物循环利用体系建设提供借鉴。

       

      Abstract: Waste treatment and utilization are closely related to the ecological environment of the sustainable earth. China has issued a series of relevant laws, regulations, and standards around waste treatment and recycling at present. The waste treatment and utilization have been continuously improved to construct the waste recycling system. However, the imperfect legal and regulatory of waste recycling, and the low efficiency of industrialization have restricted the efficient treatment and utilization of waste in China. It is very necessary to draw on the experiences from of the developed countries in the concepts, policies, technologies, and management on of waste treatment and utilization. Among them, Japan is at the forefront of waste treatment and utilization in the world. This article aims to review the current situation of waste generation, treatment, and utilization in Japan, with the an emphasis on the anaerobic fermentation for biogas production, aerobic composting for fertilizer production, and food waste feed conversion. The results show that a significant downward trend was found in the amount of waste that generated and ultimately treated in Japan since 2000, especially with the promotion of waste classification and recycling. The final disposal volume of waste decreased by about 77% (13 million tons) in 2019, compared with 2000. The waste recycling rate was about 43%, with an increase of 7 percentage points. Anaerobic digestion, aerobic composting, and functional feed technologies were industrialized and applied at the international leading level in Japan. In addition, an in-depth analysis was provided for the rich experience and practical practices in the waste treatment and utilization. Great importance was also attached to the binding role of laws and regulations. A comprehensive regulatory system was established to cover the entire waste recycling chain. The specific and clear provisions were provided for the effective waste management. The sustainable industry was greatly contributed to the stable and efficient operation in of a sound recycling and payment, particularly for an operational subsidy and product policies. In terms of technological innovation, a strong sense of leadership was achieved in the traditional technologies, such as biogas production and incineration power generation. The industrial operations were also observed in new technologies, such as kitchen waste feed conversion and biological hydrogen production, indicating strong technological innovation. The guiding role was also obtained in the science popularization and education. The systematic and multi-level science popularization activities were effectively enhanced the environmental awareness, the concept of 'whoever produces, pays', public participation, and joint maintenance of environmental protection. Finally, some suggestions were made to fully learn from the successful experience and practices in the waste treatment and utilization. The priority principle of 3R (Reduce, Reuse, and Recycle) was followed to construct a complete waste recycling, from the aspects of laws and regulations, technological innovation, operational construction, and conceptual transformation. The low-carbon and circular development can also be promoted to reduce the high waste generation in the diverse types for the high treatment and utilization rates in China.

       

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